How To Install PHP 8 on Debian 11

Introduction

PHP is a popular server-side scripting language. This guide explains how to install PHP 8 on Debian 11.

Prerequisites

To follow this guide:

• Deploy a Debian 11 cloud server at Vultr.
• Update the server.
• Create a non-root user with sudo privileges.

Install PHP 8 on Debian 11

To install PHP 8 on Debian, you must set up the deb.sury.org repository.

1. Add the repository key.

    $ wget -qO - https://packages.sury.org/php/apt.gpg | sudo apt-key add -

2. Add the repository.

    $ echo "deb https://packages.sury.org/php/ $(lsb_release -sc) main" | sudo tee /etc/apt/sources.list.d/sury-php.list

3. Update the package index.

    $ sudo apt update

4. Install PHP 8.0 from the deb.sury.org repository.

    $ sudo apt install php8.0

5. Verify the PHP 8 installation.

    $ php -v

Extensions

PHP extensions add new functionality to PHP.

• To check the list of installed extensions:

    $ php -m

• To find available extensions, see the extension list.

• Use apt to install extensions:

    $ sudo apt install php8.0-{extension name}

  For example, to install the MySQL extension:

    $ sudo apt install -y php8.0-mysql

More Information

For more information on PHP 8, please see the official documentation